Is there a problem with the overload of the motor of the injection molding machine, the inverter? Or

The main difference between cryogenic servo motors and normal motors is the temperature range in which they are designed and used. Ordinary Motors: Ordinary motors are motors that typically operate at room temperatures and are designed and manufactured with the temperature conditions of general industrial and household applications in mind.

The temperature range of these motors is typically 0??c (Celsius) to 40??c.

In this range, the performance and reliability of ordinary motors can be well guaranteed. Low-temperature motors: Low-temperature servo motors are specially designed and manufactured for use in low-temperature environments.

These motors are capable of operating in more extreme low temperature conditions and have higher cold resistance. Their temperature range is usually -40??c or lower, e.g. -60??

c。Low-temperature motors play an important role in applications such as extremely cold regions, high altitudes, refrigeration industry and scientific experiments...

There is a problem in the oil pump, there is a problem with the motor, you can disassemble the main circuit of the motor and then turn it on to see if there is the same alarm.

What kind of voice is it?,To explain it.。。 It can only be estimated.

1: Lack of phase (maybe the rotor foot of the motor burns 1 phase, and the inverter lacks phase - this may be relatively large).

2: The gearbox is damaged (generally thrust bearing).

The thermal protector can be changed to a *** point, or the current can be adjusted a little appropriately.

Both motor insulation and hydraulic lines are checked.

1. Test whether the motor current is normal during operation.

2. Whether there is abnormal voltage in the main power supply (voltage drop caused by lack of phase or poor contact) 3. Whether the operating pressure is set too much, and whether the time is too long (the motor current is large under long-term high voltage)4. There is a problem with the oil circuit of a certain operation.

Hello, it is the problem of the oil inlet filter, in the oil cylinder, the oil pump inlet filter is blocked, (touch it with your hand under the oil), if the blockage is serious, the machine will produce a loud noise and then the machine will automatically shut down. Remove the strainer and clean it, there are 3-5 strainers in it and remove all of them for washing. When unloading it's threaded, you turn him down.

Wash with a brush with diesel, wash the handstand and let the oil run dry before putting it on. If there is a broken filter, replace it with a new one.

OC is generally the inverter detects the overcurrent to protect, the possible reason is that the machine load is too heavy, the acceleration time is too short, the motor failure, the inverter itself failure is possible, if the reset can continue to use normally, then it may be the cause of the load.

The inverter motor is worth running continuously in the range of 10% 100% rated speed at 100% rated load under standard environmental conditions, and the temperature rise will not exceed the calibration tolerance value of the motor.

The inverter motor is actually a motor designed for the inverter, which can achieve different speeds and torques under the drive of the inverter to adapt to the change of load demand.

The inverter motor is developed from the traditional squirrel cage motor, which changes the traditional motor fan to an independent fan, and improves the insulation performance of the motor winding. In the case of low requirements such as low power and frequency, in the case of rated working frequency, it can be replaced by an ordinary squirrel cage motor.

The principle of inverter energy saving.

From fluid mechanics, P (power) = Q (flow) H (pressure), flow rate Q is proportional to the square of the speed n, pressure h is proportional to the square of the speed n, power p is proportional to the cube of the speed n, if the efficiency of the pump is constant, when the flow rate is required to be adjusted, the speed n can decrease proportionally, and the shaft output power p is proportionally proportional to the square relationship.

That is, the relationship between the power consumption of the pump motor and the speed is approximately proportional. For example: a water pump motor power is 55kw, when the speed drops to 4 5 of the original speed, its power consumption is, power saving, when the speed drops to 1 2 of the original speed, its power consumption is, power saving.

The variable frequency motor test generally needs to use the inverter power supply, because the output frequency of the inverter has a wide range of variation, and the output PWM wave contains rich harmonics, the traditional transformer and power meter can no longer meet the measurement needs of the test, and the general Hall voltage, current sensor does not directly affect the angle difference index of power accuracy measurement to control and nominal, should use the frequency conversion power analyzer and frequency conversion power sensor with clear ratio and angular difference index as the main power measurement instrument.

Inverter motor refers to continuous operation at 100% rated load in the range of 10% 100% rated speed under standard environmental conditions, and the temperature rise will not exceed that.

It is a motor that belongs to the allowable value of motor calibration.

Advantages of AC variable frequency speed regulating motor:

1. Easy speed regulation and energy saving. The capacity can be expanded to achieve high speed and high voltage operation.

2. No sparks, explosion-proof, strong environmental adaptability. The AC motor has simple structure, small size, small inertia, low cost, easy maintenance and durability.

3. Soft start and fast braking can be realized.

Variable frequency motor refers to a motor that runs continuously within the range of 10% 100% rated speed at 100% rated load under standard environmental conditions, and the temperature rise will not exceed the calibration tolerance value of the motor.

When the speed of the asynchronous motor does not change much, the speed is proportional to the frequency, and it can be seen that the speed of the asynchronous motor can be changed by changing the frequency of the power supply. When the frequency conversion speed regulation, it is always hoped that the main magnetic flux remains unchanged. If the main magnetic flux is greater than the normal normal magnetic flux, the excitation current will increase and the power factor will be reduced due to the oversaturation of the magnetic circuit. If the main magnetic flux is less than the normal normal magnetic flux, the motor torque will decrease.

The mechanical parts with high balance quality and vibration level R (vibration reduction level) have high machining accuracy, and special high-precision bearings are used to enable high-speed operation.

Inverter BAI motor industry application and characteristics.

1.Inverter electricity.

DU machine in chemical machinery, zhi

Plastic machinery, papermaking DAO machine special machinery, injection molding machines, boilers and other industries occupy an important position, widely used, frequency conversion motor smooth stepless speed regulation, high reliability, high precision, improve the level of industry production automation, and the energy saving effect is very significant.

2.The variable frequency motor is suitable for the speed regulation asynchronous motor controlled by the frequency converter, with a large speed regulation range, high precision, stepless speed regulation, no additional slip loss due to speed regulation, and easy to achieve closed-loop control. Generally, 4-level motors are selected, the basic frequency working point is designed at 50Hz, the motor is operated with constant torque in the frequency range of 0-50Hz, and the motor is operated with constant power in the range of frequency 50-100Hz, and the entire speed regulation range is (0-2800r min), which basically meets the requirements of general drive equipment, and its speed regulation characteristics are smooth and stable.

If you want to increase the output torque within the constant torque speed regulation range, you can also choose a 6-pole or 8-pole motor, but the volume of the motor is relatively larger.

3.The variable frequency speed motor can be equipped with an additional speed encoder, which can realize the advantages of high-precision speed, position control, and fast dynamic characteristic response. It can also be equipped with a special DC (or AC) brake for the motor to achieve fast, effective, safe and reliable braking performance of the motor.

I have installed the inverter, the power saving is about 15%, maybe my output is a little low, anyway, the power saving is not obvious, can your electromagnetic heating really save so much electricity?

The key is to see if your motor has a margin, and it has nothing to do with what electromagnetic heater you install, because the inverter controls the speed of the motor. For example, if your motor is running at 50Hz all the time, which can just meet the needs of your production process, then, at this time, there is no energy-saving effect for you to install the inverter; However, if your motor only needs to run to 30Hz to meet the needs of your production process, then installing a frequency converter will definitely save energy. There is also a situation, that is, in a working cycle, your motor does not need to run for a period of time, because the inverter is not installed, the motor can not be shut down in time, at this time there will be energy loss, after the inverter is installed, this part of the energy can be saved.

It can save energy: the first floor said to see if there is a margin, but I don't know about the injection molding machine, because the injection molding machine has a heating process in the process of producing products, and if you don't use the inverter, the motor will run idle, which will consume a lot of electricity. The energy-saving transformation of the injection molding machine is transformed by the PID control function of the inverter or servo, which not only saves electricity, but also reduces the impact on the equipment.

For example, when the temperature is lowered when the fan is used to control the temperature, the motor speed will be automatically reduced to achieve the energy-saving effect, and the speed will be automatically increased when the temperature is high, mainly to control the speed to save energy.

If your production speed is stable, you don't need it, depending on your situation, you will be introduced to the following solutions.

1》How to reduce heat loss? (e.g. improving the outer cover, etc.).

2》Add a thermostat (it should have been there for a long time).

The inverter controls the speed of the motor. For example, if your own motor has been running at 50Hz, which can meet the needs of the production process, then, at this time, the installation of the inverter has no energy-saving effect; However, if your own motor only needs to run to 30Hz to meet the needs of the production process, then the installation of an inverter will definitely save energy. There is also a situation, that is, in a working cycle, your own motor does not need to run for a period of time, because there is no inverter, the motor can not be shut down in time, at this time there will be energy loss, after installing the inverter, this part of the energy can be saved.

It can save power, and the key programs should be written well.

The computer board is a triode output, and the power is not enough. The other is that there is a driver board that can separate the strong current from the strong and weak current. It plays a role in safety isolation.

These signals are generally 0-24 volts, it is not recommended that you transform, there is no effect, on the contrary, *** is very large.

The problem ** has been solved for you, give me extra points.

Analog control, if it doesn't work, add a PLC in the middle

Why does the application of frequency conversion to injection molding machines feel as if my brother still doesn't know much about the trend?